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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkPdfContext.h" | 8 #include "SkPdfContext.h" |
9 #include "SkPdfNativeTokenizer.h" | 9 #include "SkPdfNativeDoc.h" |
| 10 #include "SkPdfReporter.h" |
| 11 #include "SkPdfTokenLooper.h" |
| 12 |
| 13 /////////////////////////////////////////////////////////////////////////////// |
| 14 |
| 15 class PdfMainLooper : public SkPdfTokenLooper { |
| 16 public: |
| 17 PdfMainLooper(SkPdfTokenLooper* parent, |
| 18 SkPdfNativeTokenizer* tokenizer, |
| 19 SkPdfContext* pdfContext, |
| 20 SkCanvas* canvas) |
| 21 : SkPdfTokenLooper(parent, tokenizer, pdfContext, canvas) {} |
| 22 |
| 23 virtual SkPdfResult consumeToken(PdfToken& token); |
| 24 virtual void loop(); |
| 25 }; |
| 26 |
| 27 /////////////////////////////////////////////////////////////////////////////// |
10 | 28 |
11 SkPdfContext::SkPdfContext(SkPdfNativeDoc* doc) | 29 SkPdfContext::SkPdfContext(SkPdfNativeDoc* doc) |
12 : fPdfDoc(doc) | 30 : fPdfDoc(doc) |
13 , fTmpPageAllocator(new SkPdfAllocator()) { | 31 { |
| 32 SkASSERT(fPdfDoc != NULL); |
14 } | 33 } |
15 | 34 |
16 SkPdfContext::~SkPdfContext() { | 35 void SkPdfContext::parseStream(SkPdfNativeObject* stream, SkCanvas* canvas) { |
17 delete fTmpPageAllocator; | 36 SkPdfNativeTokenizer* tokenizer = fPdfDoc->tokenizerOfStream(stream, &fTmpPa
geAllocator); |
| 37 if (NULL == tokenizer) { |
| 38 // Nothing to parse. |
| 39 return; |
| 40 } |
| 41 PdfMainLooper looper(NULL, tokenizer, this, canvas); |
| 42 looper.loop(); |
| 43 // FIXME (scroggo): Will restructure to put tokenizer on the stack. |
| 44 delete tokenizer; |
18 } | 45 } |
| 46 |
| 47 /////////////////////////////////////////////////////////////////////////////// |
| 48 |
| 49 // FIXME (scroggo): This probably belongs in a debugging file. |
| 50 // For reportRenderStats declaration. |
| 51 #include "SkPdfRenderer.h" |
| 52 |
| 53 // Temp code to measure what operands fail. |
| 54 template <typename T> class SkTDictWithDefaultConstructor : public SkTDict<T> { |
| 55 public: |
| 56 SkTDictWithDefaultConstructor() : SkTDict<T>(10) {} |
| 57 }; |
| 58 |
| 59 SkTDictWithDefaultConstructor<int> gRenderStats[kCount_SkPdfResult]; |
| 60 |
| 61 const char* gRenderStatsNames[kCount_SkPdfResult] = { |
| 62 "Success", |
| 63 "Partially implemented", |
| 64 "Not yet implemented", |
| 65 "Ignore Error", |
| 66 "Error", |
| 67 "Unsupported/Unknown" |
| 68 }; |
| 69 |
| 70 // Declared in SkPdfRenderer.h. Should be moved to a central debugging location. |
| 71 void reportPdfRenderStats() { |
| 72 for (int i = 0 ; i < kCount_SkPdfResult; i++) { |
| 73 SkTDict<int>::Iter iter(gRenderStats[i]); |
| 74 const char* key; |
| 75 int value = 0; |
| 76 while ((key = iter.next(&value)) != NULL) { |
| 77 printf("%s: %s -> count %i\n", gRenderStatsNames[i], key, value); |
| 78 } |
| 79 } |
| 80 } |
| 81 |
| 82 #include "SkPdfOps.h" |
| 83 |
| 84 SkPdfResult PdfMainLooper::consumeToken(PdfToken& token) { |
| 85 if (token.fType == kKeyword_TokenType && token.fKeywordLength < 256) |
| 86 { |
| 87 PdfOperatorRenderer pdfOperatorRenderer = NULL; |
| 88 if (gPdfOps.find(token.fKeyword, token.fKeywordLength, &pdfOperatorRende
rer) && |
| 89 pdfOperatorRenderer) { |
| 90 SkPdfTokenLooper* childLooper = NULL; |
| 91 // Main work is done by pdfOperatorRenderer(...) |
| 92 SkPdfResult result = pdfOperatorRenderer(fPdfContext, fCanvas, &chil
dLooper); |
| 93 |
| 94 int cnt = 0; |
| 95 gRenderStats[result].find(token.fKeyword, token.fKeywordLength, &cnt
); |
| 96 gRenderStats[result].set(token.fKeyword, token.fKeywordLength, cnt +
1); |
| 97 if (childLooper) { |
| 98 // FIXME (scroggo): Auto delete this. |
| 99 childLooper->setUp(this); |
| 100 childLooper->loop(); |
| 101 delete childLooper; |
| 102 } |
| 103 } else { |
| 104 int cnt = 0; |
| 105 gRenderStats[kUnsupported_SkPdfResult].find(token.fKeyword, |
| 106 token.fKeywordLength, |
| 107 &cnt); |
| 108 gRenderStats[kUnsupported_SkPdfResult].set(token.fKeyword, |
| 109 token.fKeywordLength, |
| 110 cnt + 1); |
| 111 } |
| 112 } |
| 113 else if (token.fType == kObject_TokenType) |
| 114 { |
| 115 fPdfContext->fObjectStack.push( token.fObject ); |
| 116 } |
| 117 else { |
| 118 // TODO(edisonn): store the keyword as a object, so we can track the loc
ation in file, |
| 119 // and report where the error was triggered |
| 120 SkPdfReport(kCodeWarning_SkPdfIssueSeverity, kNYI_SkPdfIssue, token.fKey
word, NULL, |
| 121 fPdfContext); |
| 122 return kIgnoreError_SkPdfResult; |
| 123 } |
| 124 return kOK_SkPdfResult; |
| 125 } |
| 126 |
| 127 void PdfMainLooper::loop() { |
| 128 PdfToken token; |
| 129 // readToken defined in SkPdfTokenLooper.h |
| 130 // FIXME (scroggo): Remove readToken (which just calls fTokenizer->readToken
, plus draws |
| 131 // some debugging info with PDF_DIFF_TRACE_IN_PNG) |
| 132 while (readToken(fTokenizer, &token)) { |
| 133 this->consumeToken(token); |
| 134 } |
| 135 } |
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